201536056656 has 120 divisors (see below), whose sum is σ = 615804710976. Its totient is φ = 61021009920.

The previous prime is 201536056651. The next prime is 201536056693. The reversal of 201536056656 is 656650635102.

201536056656 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 36 + 0 + 566 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201536056651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1885216 + ... + 1989248.

Almost surely, 2^201536056656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201536056656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307902355488).

201536056656 is an abundant number, since it is smaller than the sum of its proper divisors (414268654320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201536056656 is a wasteful number, since it uses less digits than its factorization.

201536056656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105281 (or 105272 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 201536056656 in words is "two hundred one billion, five hundred thirty-six million, fifty-six thousand, six hundred fifty-six".